Trianco Greenflame 18kW Guide

Greenflame Slim Wood Pellet Boiler 18kW
1
Greenflame Slim Wood Pellet Boiler 18kW
Internal & External
Installation, Operation and Servicing Instructions
PLEASE NOTE:
This product MUST be commissioned by a T R Engineering Ltd approved engineer.
INSTALLER
Have you been trained by T R Engineering Ltd to commission this appliance?
If you intend to commission and do not have a T R Engineering Ltd Cert No. Call now to
arrange training on 0114 257 2300
Please read these instructions carefully before installing and operating this appliance.
TO BE RETAINED BY THE HOUSEHOLDER

Greenflame Slim Wood Pellet Boiler 18kW
2
Contents
1. Introduction
3
2. Warnings and Guarantee/Warranty Information
3-5
2.1 Safety Instructions
3
2.2 Operating Warnings
4
2.3 Guarantee/Warranty Information
4
2.3.1 Limitations
4
2.3.2 Exclusions
4
2.4 Clean Air Act 1993
5
2.5 Customer Handover
5
3. After Sales Service Information
5-6
3.1 How to Report a Fault
5
3.2 Technical Assistance
5
4. How your Greenflame 18kW Boiler Operates
6-10
4.1 OFF Mode
6
4.2 Check-Up
6
4.3 Ignition
6-8
4.3.1 Pre-Heating Phase
7
4.3.2 Auger Pre-Load
7
4.3.3 Fixed Ignition
7
4.3.4 Variable Ignition
7
4.3.5 Exit from Ignition
7
4.4 Stabilisation
8
4.5 Recover Ignition
8-9
4.5.1 Loss of Voltage
8
4.5.2 Restart in Extinguishing
9
4.6 Work Mode
9
4.7 Modulation
9
4.7.1 Exhaust Temperature Modulation
9
4.7.2 Water Temperature Modulation
9
4.7.3 Ambient Thermostat HV and LV
Modulation
9
4.8 Standby
9-10
4.8.1 Standby > Modulation
9
4.8.2 Standby > Extinguishing
10
4.9 Safety
10
4.10 Extinguishing
10
4.10.1 Extinguishing
10
4.10.2 Final Cleaning
10
5. Pre-Installation Considerations
10-12
5.1 Pellets
10
5.2 Considerations for Installation
11
5.3 Operating Area
11
5.4 Connection of the Flue
12
5.5 Operating Problems caused by Draught
Defects in the Flue
12
6. Installation and Assembly
12-19
6.1 Plumbing Connections
12
6.2 Unpacking
13
6.3 Preparing the Base
13
6.4 Electrical Connections
13
6.5 Boiler Control Panel Schematic
14
6.5 Lambda Control Panel Schematic
15
6.6 Auger Set-Up (Optional)
16
6.7 Vacuum System Set-Up (Optional)
17-18
6.7.1 Description
17
6.7.2 Installation
17
6.7.3 Controller Functions
17
6.7.4 System Menu
17
6.7.5 Technical Data
18
6.7.6 Assembly
18
6.8 Water Connections
18
7. Control System
19-23
7.1 System Menu
19
7.1.1 Auger On Menu
19
7.1.2 Combustion Fan Menu
20
7.1.3 Exhaust Fan Menu
20
7.1.4 Thermostats Menu
20
7.1.5 Timer Menu
21
7.1.6 Default Settings
21
7.1.7 Enables Menu
21
7.1.8 Temperature Delta
22
7.1.9 Water Pressure Sensor Threshold
Menu
22
7.1.10 Vacuum Regulator Control
22
7.2 Lambda Menu
22
7.2.1 Lambda Regulator Control
22
7.3 Counters Menu
22
7.3.1 Counters
23
7.3.2 Error List
23
7.4 Outputs Test
23
8. Error Codes
23
9. Boiler Operation & Maintenance
24
9.1 Turning ON & OFF the Boiler
24
9.2 Emptying the Ash Pan
24
9.3 Filling the Hopper with Fuel
25
10. Technical Data
25
11. Maintenance Schedule
26
12. Spares List
26
13. Service Log
27

Greenflame Slim Wood Pellet Boiler 18kW
3
1. Introduction
Dear Customer,
We wish to thank you for choosing this Greenflame wood pellet
boiler product from T R Engineering Ltd. In order to get the best
performance from your appliance we recommend that you read
this booklet carefully before lighting the appliance for the first
time.
While thanking you again, may we remind you that the appliance
MUST NOT be used by children and that they must always be kept
at a safe distance from it.
Revisions to the publication
In order to improve the product, to keep this publication up to date
the manufacturer reserves the right to make notifications without
any advanced notice. Any reproduction, even in part, of this manual
without the consent of T R Engineering Ltd is prohibited.
Care of the manual and how to consult it
Take good care of this manual and keep it in a place which can
easily and quickly be reached.
If this manual should be lost or destroyed, or if it is in poor
condition, ask for a copy from your retailer or directly from the
manufacturer, providing product identification data.
Information which is essential or that requires special attention
is shown in bold text.
Italic text is used to call your attention to other paragraphs in
the manual or for any additional clarifications.
ATTENTION
This warning sign indicates that the message to which
it refers should be carefully read and understood,
because failure to comply with what these notices
say can cause serious damage to the boiler and put
the user’s safety at risk.
INFORMATION
This symbol is used to highlight information which is
important for proper boiler operation. Failure to
comply with these provisions will compromise use of
the boiler and its operation will not be satisfactory.
OPERATING SEQUENCES
Indicates a sequence of buttons to be pushed to
access menus or make adjustments.
MANUAL
Indicates that you should carefully read this manual
or the related instructions.
T R Engineering Ltd
T R Engineering Ltd operates a policy of continuous development
and improvements of our products and welcomes any feedback
from our customers. Please forward your comments to:
T R Engineering Ltd
Unit 7, Newton Chamber Way
Thorncliffe Industrial Estate
Chapeltown
Sheffield
S35 2PH
Tel: [phone]
Fax: [phone]
E-mail: [email protected]
Web: www.trianco.co.uk
2. Warnings and Guarantee/Warranty
Conditions
2.1 Safety Instructions
Installation of the boiler, making electrical connections, checking its
operation and maintenance are all tasks which should be carried out
by qualified and authorised personnel.
Install the boiler in accordance with the regulations in force in your
local area, region and country.
For the correct use of the appliance and to prevent accidents, the
instructions given in this booklet must always be followed.
Use, adjustment and programming must be carried out by adults.
Errors or incorrect settings may cause hazardous conditions and/or
poor operation.
Before beginning any operation, the user, or whoever is preparing to
operate on the appliance, must have read and understood the entire
contents of this instruction booklet.
All responsibility for improper use is taken entirely by the user and
such use relieves T R Engineering Ltd of any civil or criminal
responsibility.
Most of the surfaces of the appliance are extremely hot (the boiler
door, the handle, smoke discharge pipes, etc.). avoid coming into
contact with these parts, without adequate protective clothing or
suitable implements which keep the hands cool.
Carefully explain this hazard to elderly people, disabled people and
particularly to all children, keeping them away from the appliance
while it is running.
Under no circumstances should the appliance be run with the door
open.
Do not touch the appliance with wet hands, in view of the fact that
it is an electrical appliance.
Before carrying out any cleaning or maintenance operation, make
sure in advance that the appliance is isolated from the mains
electricity supply, by removing the mains isolator fuse.
The appliance must be connected to an electrical system which is
equipped with an earth conductor, as laid down in directive 73/23
EEC and 93/98 EEC.
The fuse must be of adequate rated capacity for the stated electrical
power of the appliance.
Incorrect installation or faulty maintenance (not conforming to the
requirements set out in this booklet) can cause harm to people,
animals or property. In such cases T R Engineering Ltd is absolved
from any civil or criminal responsibility.
Adhesive sealants and paints used in the manufacture of the
product are cured and present no known hazards when used in the

Greenflame Slim Wood Pellet Boiler 18kW
4
manner for which they were intended. The appliance contains no
asbestos.
2.2 Operating Warnings
Shut the appliance down in the event of breakdown or bad running.
Pellets must not be fed manually into the burner.
Accumulated un-burnt pellets in the burner after repeated failed
ignitions must be removed before re-lighting.
Do not wash the appliance with water. The water could get inside
the unit and damage the electrical insulation and cause electrical
shocks.
Do not put any fuel, other than wood pellets, in the hopper.
Install the appliance in a location which is suitable for fire-fighting
and equipped with all services such as air and electricity supply an
provision for discharging combustion gases.
If there is a fire in the flue pipe, extinguish the appliance, disconnect
it from the power supply and never open the door. Then contact the
competent authorities.
If the appliance is in storage, it should be in a place that is free of
damp, and it should not be exposed to extremes of temperature.
It is inadvisable to base the appliance directly on a floor (if located
indoors), and if the floor is made of flammable material, it must be
suitably insulated.
Do not light the appliance with flammable materials if the ignition
system breaks down.
Information
In case of any problems, get in touch with your dealer, or a qualified
engineer authorised by T R Engineering Ltd and if a repair is
necessary, insist on the use of original spare parts.
Use only fuel recommended by T R Engineering Ltd (ENplus-A1) may
be used with the appliance.
Periodically check and clean the smoke outlet ducts (connection to
flue pipe).
Accumulated un-burnt pellets in the burner after repeated failed
ignitions must be removed before lighting.
Always keep the cover of the fuel hopper closed.
Keep this instruction manual safe because it must stay with the
appliance throughout its working life. If the appliance is sold or
transferred to another user, always make sure that the booklet goes
with the product.
If it gets lost, ask T R Engineering Ltd or your authorised dealer for
another copy.
2.3 Guarantee/Warranty Information
T R Engineering Ltd offers the following warranties on this appliance:
Leaks in the heat exchanger –5 years
Faulty electrical components (motors, fan, controller) –1 year
Pump, ignition element –1 year
From the date of first ignition of the appliance as proved by a valid
commissioning report which gives the name of the
installer/commissioning engineer and the date on which the
commissioning took place. The guarantee is conditional on the
commissioning report being filled in and returned to the
manufacturer within 10 days and requires that the product be
installed and commissioned bu an approved T R Engineering Ltd
installer according to the detailed instructions given in the
instruction booklet supplied with the product.
The term ‘guarantee’ is to be understood to denote the free of
charge replacement or repair of parts only, recognised to have been
defective at the start by reason of manufacturing defects.
2.3.1 Limitations
The above guarantee does not cover parts subject to normal wear
such as gaskets, fibre board on doors and any parts which can be
removed from the firebox such as burner pot, baffles and ash box.
The replacement will be guaranteed for the remainder of the
guarantee period starting from the date of commissioning of the
product.
2.3.2 Exclusions
The warranty excludes all ancillary products associated with the
system (e.g. flue pipes, external circulation pumps, bulk hoppers and
augers, plumbing and electrical system). The warranty does not
cover third party damage to the product or damage caused by the
plumbing (an example would be an inappropriately sized expansion
vessel) or electrical system. Warranty does not cover issues arising
from pellets that do not conform to ENplus-A1.
Recommendations advised to the customer to be carried out during
commissioning must be completed and advised to your local dealer
in order to validate the warranty.
The requirement for the flue installation, particularly in relation to
draught, is the responsibility of the system owner. Compliance with
Local Building Regulations must be adhered to. The warranty does
not cover misuse of the product or sabotage.
Any consequential damage caused by the failure of a component
on this product is not covered.
T R Engineering Ltd refuses to accept the responsibility for any
damage which may be caused, directly or indirectly, by persons,
animals or things in consequence of the failure to observe all
prescriptions laid down in the instruction booklet, especially those
concerning warnings on the subject of installation, use and
maintenance of the appliance.
Damage caused by transport and/or handling is excluded from the
guarantee.
The guarantee will be invalidated in the event of damage caused by
tampering with the appliance, atmospheric agents, natural disasters,
electrical discharges, fire, defects in the electrical system and caused
by lack of, or incorrect, maintenance in terms of the manufacturer’s
instructions.

Greenflame Slim Wood Pellet Boiler 18kW
5
Claims under the Guarantee
The request for action under the guarantee must be addressed to
the dealer/retailer, who will forward the claim to T R Engineering
Ltd’s technical assistance service. T R ENGINEERING LTD DECLARES
THAT THE APPLIANCE WHICH YOU HAVE PURCHASED COMPLIES
WITH THE EEC DIRECTIVE 2004/108 EC AND 2006/95/EEC AND
SUCCESSIVE AMENDMENTS.
T R Engineering Ltd refuses to accept responsibility in the event that
the appliance or any other accessory has been improperly used or
modified without authorisation. For all replacement of parts, only
original T R Engineering Ltd spare parts must be used.
2.4 Clean Air Act 1993
Under the Clean Air Act 1993 local authorities may declare the
whole or part of the district of the authority to be a smoke control
area. It is an offence to emit smoke from a chimney of a building,
from a furnace or from any fixed boiler if located in a designated
smoke control area. It is also an offence to acquire an “unauthorised
fuel” for use within a smoke control area unless it is used in an
“exempt” appliance (“exempted” from the controls which generally
apply in the smoke control area).
The secretary of State for Environment, Food and Rural Affairs as
powers under the Act to authorise smokeless fuels or exempt
appliances for use in smoke control areas in England. In Scotland
and Wales this power rests with ministers in the devolved
administrations for those countries. Separate legislation, the Clean
Air (Northern Ireland) Order 1981, applies in Northern Ireland.
Therefore it is a requirement that fuels burnt or obtained for use in
smoke control areas have been “authorised” in regulations and that
appliances used to burn solid fuel in those areas (other than
“authorised” fuels) have been exempted by an Order made and
signed by the Secretary of State or minister in the devolved
administrations.
Further information on the requirements of the Clean Air Act 1993
can be found here: http://smokecontrol.defra.gov.uk/
Your local authority is responsible for implementing the Clean Air
Act 1993 including designation and supervision.
2.5 Customer Handover
After every commission the customer MUST be provided with
training by the commissioning engineer. The following is a list of
items which should be covered during the product induction with
the customer:
Provide a general overview of the product and identify the
main components and their function.
Illustrate how to turn on and off the appliance and adjust water
temperature through the user menu.
Demonstrate where and how to fill the appliance with fuel and
advise of the correct quality of fuel to be used.
Demonstrate how to clean down the combustion chamber by
removing and replacing the baffles, emptying the ash
containers in the main combustion chamber and lower ash
chamber.
Explain how to remove the burner grate and clear the air holes
to ensure good combustion.
Explain the various error codes that may appear and provide
instruction on how to manage and clear messages. Provide
warnings on which error codes are system critical codes and
should not be reset by the customer.
The customer must be warned of the safety implications when
handling hot ash and that heat proof gloves should be used.
The product warranty must be explained to the customer and they
shall sign the commissioning card confirming that they have
received instructions on how to operate the appliance, understand
the risks when handling hot ash and agree to the product warranty.
The warranty card and commissioning report shall be returned to T
R Engineering Ltd by fax, email or post within 30 days from the
commissioning date.
3. After Sales Service Information
A qualified field service engineer is available to attend a breakdown
occurring during the boiler’s guarantee period.
The boiler must be made available for attendance during normal
working hours, Monday to Friday.
3.1 How to Report a Fault
Step 1
Contact your installation or service engineer, who should assess the
unit and works carried out on the appliance prior to requesting the
attendance of an engineer from T R Engineering Ltd.
Step 2
Please note that upon attendance by T R Engineering Ltd engineer,
a charge will be made where:
-The engineer finds no fault with the boiler.
-The cause of the breakdown is due to parts of the system not
manufactured or supplied by T R Engineering Ltd.
-The boiler has not been installed in accordance with these
instructions.
-The boiler has not been commissioned by a qualified engineer.
-The boiler has not been serviced annually since installation.
-The breakdown occurs outside the guarantee period.
-The appliance has not been serviced annually since installation.
-The breakdown occurs as a result of work on the appliance by
an unauthorised third-party.
Important:
Invoices for attendance and repair work by any third-party will not
be accepted unless authorised in advance by T R Engineering Ltd.
3.2 Technical Assistance
A team of trained technical advisors are available to discuss any
problem with the appliance. In many cases, the problem may be
solved over the telephone, eliminating the need for an engineer’s
visit.
Before making content, please have the following information
ready:
-The appliance serial number or your unique customer
identification number (issued upon registration of the
appliance with T R Engineering Ltd).

Greenflame Slim Wood Pellet Boiler 18kW
6
-A description of the fault and any unusual behaviour by the
boiler before the failure occurred.
-The installation and commissioning dates and the details of any
annual services.
Appliance Serial No: _________________________
Cust. ID No: ________________________________
Installation Date: ___/___/___
Commissioning Date: ___/___/___
Service Centre and Technical Support
Tel: [phone] Fax: [phone]
Hours of Business
Monday –Thursday: 8:30am –17:00pm
Friday: 8:30am –14:30pm
4. How you Greenflame 18kW Pellet
Boiler Operates
The Greenflame 18kW user interface has been designed to allow the
user to carry out the basic operational and maintenance functions
while an advanced digital control system operates in the background
controlling combustion, temperature control and modulation within
the pre-determined safety parameters. The combustion is regulated
with function powers. Each power includes:
Combustion fan speed
Exhaust fan speed
Auger ON and OFF
Auger2 ON and OFF
Through these parameters it is possible to define the quantity of
pellet and air used in every moment.
The collection of powers that regulate the controller’s work is called
combustion recipe. It is possible to select 3 combustion recipes;
each one could be defined to manage a different type of pellet for
example. The functioning states and the management of INPUTS
and OUTPUTS are explained in this chapter.
1
OFF
2
CHECK-UP
3
IGNITION
4
STABILISATION
5
RECOVER IGNITION
6
WORK MODE
7
MODULATION
8
STANDBY (AUTO MAINTENANCE)
9
SAFETY
10
EXTINGUISHING (OFF MODE)
11
BLOCK
The system guarantees the security and alarms reading in each
functioning phase.
4.1 OFF Mode
It is the OFF state. The controller enters in this phase in the
following cases:
At the end of the extinguishing phase with exhaust
temperature under thermostat TH01 Exhaust OFF and
light (of the flame) values under thermostats L00 Light
OFF.
Display
OFF
Combustion Fan
OFF
Exhaust Fan
OFF
Auger
OFF
Auger2
OFF
Resistance
OFF
Belimo Valve
OFF
If the exhaust temperature is over the value TH01 Exhaust OFF or
light is over L00 light OFF.
The system starts again the Extinguishing phase.
4.2 Check-Up
The phase allows the staring cleaning before the Ignition phase. You
can define the starting cleaning Timer. This phase starts in these
cases:
If you press button ON/OFF of the control panel and the
controller is in OFF mode or in extinguishing mode and in menu
enables parameter A10 = 0.
If the ambient thermostat or ambient thermostat HV says ON
(closes the contact) and the system is in OFF mode (if the
system is in Extinguishing mode it ends this phase then start
again and goes into Check Up, then into Ignition).
At the end of the state of Standby (if water temperature and
exhaust temperature are under thermostats (see paragraph
4.8).
If you have enabled one of the possible programming of the
internal Chrono (for example programmed daily) and the actual
time is the ON time of the programming.
Display
Check-Up
Combustion Fan
Prob
Message prob if the sensor test is good
ON
To the speed UC22 –Check-Up
Exhaust Fan
ON
Enables A42 = 1 To the speed UA22 –
Check-Up
OFF
Enables A42 = 0
Auger
OFF
Auger2
OFF
Resistance
OFF
Belimo Valve
OFF
At the beginning of Check-Up
ON
After T50 seconds
In this phase the controller verifies the connected probes. If the
controller reads a probe’s value in excess with the admitted
maximum or minimum range, the display shows Prob (note: 0°C
means unconnected probe). This failure doesn’t modify the boiler’s
functioning, it is only a warning. Verify the sensor’s connections.
To bypass this phase set parameter T01 –Timer starting
cleaning = 0.
End of Check-Up:
At the end of the timer the system goes into Ignition
phase.
If the water temperature is greater than thermostat TH25 Water
Safety or exhaust temperature is over thermostat TH08 Exhaust
Safety the system goes into Extinguishing mode.
4.3 Ignition
Starts in the following cases:
At the end of the phase Check-Up.

Greenflame Slim Wood Pellet Boiler 18kW
7
The Ignition phase is divided into four phases each with a
programmable duration:
4.3.1 Pre-Heating Phase
The aim of the phase is to bring the heating resistance to the right
temperature before the pellet loading in the burner pot. The
duration is the value T02 –Timer Pre-Heating.
Display
Pre-Heating
Combustion Fan
ON
To the speed UC00 Ignition Fixed.
Exhaust Fan
ON
Parameter Enable A42 = 1 UA00 Ignition
Fixed
OFF
Parameter Enable A42 = 0.
Auger
OFF
Auger2
OFF
Resistance
ON
Belimo Valve
ON
To bypass this phase set the parameter T02 –Timer Pre-Heating =
0.
4.3.2 Auger Pre-Load
The aim of the phase is to load the pellet in the burner pot. The
duration of this phase is T03 –Timer Pre-Load.
Display
Pre-Load
Combustion Fan
ON
To the speed UC00 Ignition Fixed
Exhaust Fan
ON
Parameter Enable A42 = 1 UA00 Ignition
Fixed
OFF
Parameter Enable A42 = 0.
Auger
ON
Continually
Auger2
ON
Resistance
ON
Belimo Valve
ON
To bypass this phase set the value T03 –Timer Pre-Load = 0
4.3.3 Fixed Ignition
The aim of the phase is to start Ignition of the flame in the
combustion chamber. The duration is programmable through the
parameter T04 –Time Fixed Ignition.
Display
Ignition Fix
Combustion Fan
ON
To the speed UC00 Ignition Fixed
Exhaust Fan
ON
Parameter Enable A42 = 1 UA00 Ignition
Fixed
OFF
Parameter Enable A42 = 0
Auger
ON
C00 Ignition Fixed ON time
Auger2
ON
Resistance
ON
Belimo Valve
ON
To bypass this phase set the parameter T04 –Time fixed = 0
4.3.4 Variable Ignition
The aim of this phase is to maintain the flame in the combustion
chamber before the passage to the Stabilisation mode. The duration
is programmable through the parameter T05 Variable Ignition
Timer.
Display
Ignition
Combustion Fan
ON
Exhaust temperature < Thermostat
TH04
UC00 Fixed Ignition Speed
Exhaust temperature > Thermostat
TH04
UC01 Variable Ignition Speed
Exhaust Fan
ON
Parameter enable A42 = 1
Exhaust temperature < Thermostat
TH04
UA00 Fixed Ignition Speed
Exhaust temperature > Thermostat
TH04
UA01 Variable Ignition Speed
OFF
Parameter enable A42 = 0
Auger
ON
Exhaust temperature < Thermostat
TH04
C00 Fixed Ignition ON time
Exhaust temperature > Thermostat
TH04
C01 Variable Ignition ON time
Auger2
ON
Resistance
ON
Exhaust temperature < Thermostat TH02
OFF
Exhaust temperature > Thermostat TH02
Belimo Valve
ON
4.3.5 Exit from Ignition
The thermo regulator controls the system combustion between the
exhaust probe and the photo probe. Setting the parameter P27 it is
possible to select which control thermostats to use.
Parameter
P27
Used Probe
Thermostat
0
Exhaust Probe ONLY
TH09 bypass ignition
TH06 bypass variable
ignition
TH03 Exhaust ON
1
Photo Probe ONLY
L01 Light ON
2
Exhaust Probe
AND
Photo Probe
TH09 bypass ignition
TH06 bypass variable
ignition
TH03 Exhaust ON
L01 Light ON
During Ignition Phase
Case 1
In every Ignition phase if:
The exhaust temperature is over the thermostat TH09.
AND
The photo probe reads a light over value L01
The system goes into Run mode.
Case 2
In Variable Ignition phase if:
The exhaust temperature is over the thermostat TH06 and
delta D42 is satisfied (at the beginning of the Variable Ignition
phase the system stores the exhaust temperature, when it
increases by an amount of D42 the delta is satisfied).
AND
The photo probe reads a light over value L01.
The system goes into Stabilisation.

Greenflame Slim Wood Pellet Boiler 18kW
8
Case 3
In every Ignition phase if P27 = 1
The photo probe reads a light over value L01.
The system goes into Stabilisation.
End Ignition
In the end of Ignition phase if:
Case 1
Exhaust temperature > thermostat TH06
D42 satisfied
AND
The photo probe reads light over value L01 –Light ON
The system goes to Stabilisation.
Case 2
Exhaust temperature < Thermostat TH06
D42 not satisfied
AND
Photo probe reads a value under L01 –Light ON
The system tries the variable ignition phase again until the
parameter P02 maxim number of Ignitions.
Case 3
If water temperature > Thermostat TH25 Water Safety
The system goes into Extinguishing mode.
4.4 Stabilisation
The aim of this phase is to maintain the flame in the combustion
chamber before the passage to the normal mode. The duration of
the phase is programmable through the parameter T06 –Timer
Stabilisation.
Display
Stabilisation
Combustion Fan
ON
To the speed UC02 - Stabilisation
Exhaust Fan
ON
To the speed UA02 - Stabilisation
Auger
ON
C02 Stabilisation ON time
Auger2
ON
Resistance
OFF
Belimo Valve
ON
During Stabilisation phase if the exhaust temperature is over the
Thermostat TH09.
The system goes into Work mode.
Conditions to return in Ignition
Parameter
P27
Condition
0
Exhaust temperature < TH06 and D42 not satisfied
1
The photo probe reads a light under value L01
2
Exhaust temperature < TH06 and D42 not satisfied
AND
The photo probe reads a light under value L01
At the end of Stabilisation phase.
The system goes into Work mode.
4.5 Recover Ignition
The system goes into recover ignition in two different conditions.
4.5.1 Loss of Voltage
The controller is able to verify the duration of the loss of voltage and
then decide how to proceed with the functioning. Below is the 3
different cases evaluated by the controller according to the duration
of the loss of voltage.
Duration
Old State
New State
1
Time <= 10 seconds
--------
OLD STATE
The system restarts from the last
saved status and loads the general
timer value. If for example the
system starts the Pre-Load (duration
= 40 seconds), and after 10 seconds
the power goes OFF for 5 seconds,
when the power is ON again the
system knows that is has the
remaining time for the Pre-Load is
30 seconds (40 seconds –10
seconds). When the system
calculates which is the remaining
time, i.e. how many seconds it has
to do it doesn’t consider the period
during which the power was OFF (in
the example 5 seconds), so that the
effective duration of the Pre-Load
doesn’t change.
2
10 seconds < Time < T42
Check Up
Stabilisation
Work Mode
Modulation
Standby
IGNITION
The system goes into Recover
Ignition that is an extinguishing
phase. During this time the system
waits until the exhaust temperature
is under thermostat L00 Light OFF,
then makes the final cleaning (fans
to the maximum speed), then
automatically restarts (goes into
Ignition).
Ignition
If the system is in Ignition and the
power goes OFF, when the power is
ON again the system automatically
goes into Variable Ignition and
continues the Ignition phase. In this
case even if the system was in Pre-
Load when the power is ON again
the system goes into Variable
Ignition so that the duration of the
Pre-Load is always the same and the
system doesn’t do a new Pre-Load.
10 seconds < Time < T42
OFF
Block
OFF
10 seconds < Time < T42
Extinguishing
OFF
If exhaust temperature is over S16
TH_OFF and light is over L00 Light
OFF the system starts the
Extinguishing (OFF) procedure
again.
3
Time < T42
--------
OFF
NOTE: The controller saves the status and the General timer every 5
seconds, so when there is a loss of voltage you have to consider that
could be a difference of 5 seconds between the real value of the
duration (of loss of voltage) and the value calculated. For this reason
the minimum value of duration to go into the last saved status is 15
seconds (so that in the best case well have as a minimum value 10
seconds and in the worst case well have 15 seconds). This value is
fixed. You can only set the maximum value to recover the ignition
before the loss of voltage the system was in ON mode.

Greenflame Slim Wood Pellet Boiler 18kW
9
4.5.2 Restart in Extinguishing
During the Extinguishing mode press the ON/OFF button to restart
if:
The parameter enable A10 = 1
The system finishes the Extinguishing phase and then it
starts a new ignition from Check-Up phase.
Display Visualisation
Recover Ignition
The parameter enable A10 = 0
The system starts a new ignition from Check-Up phase.
4.6 Work Mode
When the system goes into Work mode it automatically increases
the Combustion Power to the functioning. If the parameter A16 = 1
the combustion power will increase a delay of T18 or T17 seconds in
every transition (depending if the system comes from ignition or
not).
Display
Run Mode
Combustion Fan
ON
A05 = 1 Maximum Power
A05 = 0 User Power
Exhaust Fan
ON
A05 = 1 Maximum Power
A05 = 0 User Power
Auger
ON
A05 = 1 Maximum Power
A05 = 0 User Power
Auger2
ON
Resistance
OFF
Belimo Valve
ON
From Work mode state the system can go into:
Modulation
Standby
Extinguishing
4.7 Modulation
The aim of this phase is to reduce the combustion to gradually reach
the thermostat TH24 or reduce the exhaust temperature. The phase
starts in the following cases:
4.7.1 Exhaust Temperature Modulation
If the exhaust temperature is greater than thermostat Exhaust
modulation TH07:
Immediately the controller reduces the combustion power by
one unit.
Waits for two minutes.
If at the end of this timer exhaust temperature > TH07 + D41:
The controller decreases the combustion power by another
unit.
Waits for another two minutes.
This procedure continues until exhaust temperature > TH07 + D41
The system exits from Modulation if exhaust temperature < TH07 –
IH07.
4.7.2 Water Temperature Modulation
If the water temperature is greater than thermostat Water
temperature.
The system goes into Modulation
*Water modulation = Water standby TH24 –Delta standby D08
Case 1: A05 = 1 Automatic Combustion
The system automatically calculates the combustion power value
according to water temperature with a temperature step of D08/6°C
and it sets this until Power 1.
Case 2: A05 = 0 Manual Combustion
The system automatically manages the combustion power as
explained below. The controller calculates the combustion value
according to water temperature with a temperature step of
D08/6°C.
The system sets the calculated power value if it is lower than user
power, otherwise it maintains the user power. During this phase if
A13 = 1 and water temperature is greater than thermostat TH24 +
D10 for a time greater than T51.
The system goes into Standby –Extinguishing.
4.7.3 Ambient Thermostat HV and LV
Modulation
If A07 = 1 or A64 =1 and there is no sanitary request (flow switch
open if P35 = 0, 1, 5 or buffer temperature greater than TH29 if P35
= 2, 3 or 4) the system will go into Modulation. At the end of
Modulation, the system sets the user power.
Display
Modulation
Combustion Fan
ON
According to set power combustion
Exhaust Fan
ON
According to set power combustion
Auger
ON
According to set power combustion
Resistance
OFF
Belimo Valve
ON
4.8 Standby
If water temperature is greater than thermostat TH24.
OR
Exhaust temperature is greater than thermostat TH10.
OR
The buffer tank temperature is greater than thermostat TH29 (if P35
= 4 or P35 = 2, 3 and summer time selected).
OR
Ambient thermostat LV (if A07 = 2) and/or HV (if A64 = 2) open and
there is not sanitary request (flow switch open if P35 = 0, 1, 5 or
buffer temperature greater than TH29 if P35 = 2, 3 or 4).
If the water temperature goes over thermostat TH25 Water Safety,
the system extinguishes completely and waits for a decrease in
water temperature.
4.8.1 Standby > Modulation
Setting the enable parameters if:
A13 = 0 (Standby for water temperature)
OR
A21 = 0 (Standby for exhaust Temperature)
Modulation Power
Display
Modulation
Combustion Fan
ON
To the speed UC10 –Modulation
Exhaust Fan
ON
To the speed UA10 –Modulation
Auger
ON
C10 Modulation ON time
Auger2
ON
Resistance
OFF
Belimo Valve
ON

Greenflame Slim Wood Pellet Boiler 18kW
10
4.8.2 Standby - Extinguishing
Setting the enable parameters if:
A13 = 1 (Standby for water temperature)
OR
A21 = 1 (Standby for exhaust temperature)
OR
P35 = 4 or P35 = 2, 3 and summer time selected (standby for buffer
thermostat)
Extinguishing
Display
Standby
Combustion Fan
ON
To the speed UC11 –Extinguishing
Exhaust Fan
ON
To the speed UA11 - Extinguishing
Auger
OFF
Auger2
OFF
Resistance
OFF
Belimo Valve
OFF
The controller starts the extinguishing phase to extinguish the flame
and decrease the residual heat until the exhaust temperature is
under thermostat TH01 –Exhaust OFF and light is under L00 Light
OFF, then the system goes into:
Final Cleaning
The final cleaning of the burner pot has a duration of a
programmable time T16.
Display
Stdby
It is showed the message Stby
Combustion Fan
ON
To the speed UC23 –Final Cleaning
Exhaust Fan
ON
Enables A41 = 1 to the speed UA23 –Final
Cleaning
OFF
Enables A41 = 0
Auger
OFF
Auger2
OFF
Resistance
OFF
Belimo Valve
OFF
End of Standby:
Water temperature under thermostat TH24 –IH24 and exhaust
temperature under Thermostat TH10 –IH10 and buffer tank
temperature under TH29 –IH29 and ambient thermostat closed (if
configured for Standby).
The system goes into Check-Up (See. Check-Up 4.2)
4.9 Safety
When the system goes into Safety mode the timer T15 Safety Timer
starts. This phase starts in the following cases:
The water temperature is over thermostat TH25 Water Safety.
The exhaust temperature is over thermostat TH08 –Exhaust
Safety.
During this phase the system controls if safety conditions persist.
Display
Safety
Combustion Fan
ON
To the speed UC10 –Modulation
Exhaust Fan
ON
To the speed UA10 - Modulation
Auger
OFF
Auger2
OFF
Resistance
OFF
Belimo Valve
OFF
If the water temperature increases over thermostat TH40 Water
Alarm then an acoustic alarm starts. End of Safety Mode:
If timer T15 is not expired
The system goes to the previous state.
If timer T15 expires.
The system goes into Extinguishing mode and then in
Block mode.
4.10 Extinguishing
It starts in the following cases:
Manual Extinguishing: Press the ON/OFF button on the control
panel whatever is the actual functioning state.
Automatic Extinguishing: If the light is under thermostat
PHOTO PROBE LIGHT OFF L00 (or exhaust temperature is under
TH03 with P27 = 0).
If an alarm occurs
The state is divided into 2 phases.
4.10.1 Extinguishing
To extinguish the flame and wait until the end of the remaining
heating, until exhaust temperature is under Thermostat TH01 –
Exhaust OFF.
Display
Extinguish
Combustion Fan
ON
To the speed UC11 Extinguishing
Exhaust Fan
ON
To the speed UA10 Extinguishing
Auger
OFF
Auger2
OFF
Resistance
OFF
Belimo Valve
OFF
4.10.2 Final Cleaning
For the final cleaning of the burner pot for a programmable time
T16 Final Cleaning.
Display
Extinguish
Combustion Fan
ON
To the speed UC23 Final Cleaning
Exhaust Fan
ON
Enables A41 = 1 To the speed UA23 Final
Cleaning
Enables A41 = 0
Auger
OFF
Auger2
OFF
Resistance
OFF
Belimo Valve
OFF
To bypass the phase final cleaning set the value T16 –Time Final
Cleaning = 0 and remember that also during Standby the controller
doesn’t make the final cleaning. End of the Extinguishing mode:
At the end of the Final Cleaning the system goes into OFF
mode.
5Pre-Installation Considerations
5.1 Pellets
Wood pellets are manufactured by hot-extruding compressed
sawdust which is produced during the working of natural dried
wood. The compactness of the material comes from lignin which is

Greenflame Slim Wood Pellet Boiler 18kW
11
contained in the wood itself and allows the production of pellets
without the use of glues or binders.
The market offers different types of pellet with characteristics which
vary depending on what mixture of woods is used. The diameter
varies between 6mm and 8mm, with a standard length in the range
5mm to 30mm. Good quality pellets have a density which varies
between 600kg/m3and 750kg/m3, with a moisture content which
varies from 5% to 8% by weight.
Besides being ecological fuel (exploiting timber resides to the
maximum and achieving cleaner combustion than is possible with
fossil fuel), pellets also have technical advantages. While good
quality timber has a calorific power of 4.4kW/kg (with 15% moisture,
therefore after about 18 months seasoning), the equivalent figure
for pellets is 4.9kW/kg.
To ensure good combustion, the pellets must be stored in an area
that is free of humidity and protected from dirt. The pellets are
usually supplied in 10kg bags, so storing them is very convenient.
Good quality pellets ensure good combustion, thus lowering the
emission of harmful agents into the atmosphere.
The poorer the quality of fuel, the more frequently intervention be
necessary for cleaning the internal parts, such as the grate and the
combustion chamber.
The main certifications of quality for pellets in the European market
are ENplus-A1 these ensure respect of:
Calorific Power: 4.9kW/kg
Water Content: max 10% of weight
Percentage of Ashes: max 0.5% by weight
Diameter: 6mm
Length: max 30mm
Contents: 100% untreated wood, with no added bonding
substances (bark percentage 5% max)
Packaging: in sacks made from ecologically compatible or
biologically decomposing material.
T R Engineering Ltd recommends using certified fuel in its
appliances to ENplus-A1. The use of fuel of inferior quality or not
conforming to the specification given above compromises the
running of your appliance and can therefore lead to the
termination of the guarantee and of the manufacturer’s
responsibility for the product.
T R Engineering Ltd domestic pellet appliances run exclusively on
pellets with a diameter of 6mm. It is recommended that the brand
of pellets used during commissioning are used during normal
operation. If you change your pellet supplier or brand, re-
calibration may be necessary and a call-out charge will apply.
The Greenflame 18kW slim has been recommended a suitable for
use in smoke control areas when burning ENplus-A1 wood pellets.
5.2 Considerations for Installation
Important!
Installation and assembly of the appliance must be carried out by
qualified personnel.
The appliance must be installed in a suitable position to allow the
normal operations of opening and ordinary maintenance. The site
must be:
Capable of providing the environmental conditions for
operation.
Equipped with power supply 230V 50Hz (EN73-23).
Capable of taking an adequate system for smoke discharge.
Provided with external ventilation (if located indoors).
Provided with an earth connection complying with CEI 64-8.
The appliance must be connected to a flue pipe or internal or
external vertical duct conforming to current standards UNI129-
7131 9515.
The boiler must be positioned in such a way that the power
isolation fuse is accessible.
Important!
The boiler must be connected to a flue pipe or vertical
duct which can discharge the fumes at the highest point
of the building.
The fumes are however derived from the combustion of wood
products and if they come into with or close to walls, they can cause
smoke staining. Also take care because the fumes are very hot and
almost invisible and can cause burns on contact.
5.3 Operating Area
For proper functioning, the appliance should be positioned in a
location where it is able to take in the air necessary for combustion
of the pellets (above 40m3/h must be available), as laid down in the
standard governing the installation and in accordance with local
national standards. All louvers on the external casing of the boiler
must be un-obstructed at all times as these allow air for combustion
and for cooling to enter the appliance enclosure. Heavy snowfall can
also obstruct the air in-take louvers and cause the appliance to not
burn clean. Smoke emanating from the flue is a symptom of this.
Snow must be cleared from around the appliance at the earliest
opportunity.
Where the appliance is to be installed indoors it is not
permissible to install the appliance where another
heating appliance is installed (fireplace, stove, etc.)
which does not have its own independent air in-take.
Locating the appliance in a room with an explosive
atmosphere, e.g. workshop or tool shed. The floor of the
room where the appliance is to be installed must be
strong enough to take its weight.
If the walls are flammable, position the appliance with a clearance
to the rear of 450mm, 300mm on the sides and 1500mm at the
front.
If the flooring is made of wood, provide a floor protection surface
in compliance with current national standards.
Service Clearances
The minimum service clearances around the appliance are as
follows:
Rear –50mm Nominal
Ends –300mm
Front –600mm
Concrete plinth should extend 300mm past the front and ends.
300mm
300mm
300mm
600mm

Greenflame Slim Wood Pellet Boiler 18kW
12
5.4 Connection of the Flue
The proper draught conditions in the flue are critical for the efficient
working of wood pellet boilers. The flue can exit the boiler
house/garage through the roof or through the wall by using a bend
on the flue. The combustion chamber works in negative pressure.
The smoke duct for the discharge of fumes will also be under
negative pressure when connected to an efficient flue pipe as
directed.
All sections of the flue must be capable of inspection and removable
to enable periodic internal cleaning.
Position the appliance bearing in mind all instructions and
considerations above.
IMPORTANT!
THE FLUE IS AN INTEGRAL AND CRITICAL COMPONENT IN
ANY SUCCESSFUL BIOMASS BOILER INSTALLATION. IN
ORDER FOR YOUR BOILER TO OPERATE CORRECTLY
EFFICICENTLY AND SAFELY IT HAS TO BE CONNECTED TO
A FLUE SYSTEM WHICH IS SUITABLE, CORRECTLY
DESIGNED AND INSTALLED.
INCORRECT FLUE CONNECTIONS CAN LEAD TO CONDITIONS BEING
CREATED WHICH CAN BE UNSAFE, DAMAGING TO YOUR BOILER
AND INVALIDATE THE WARRANTY.
-Check for adequate ventilation. This must be clear at ALL times.
You must make the customer aware of the needs to avoid any
obstruction of the air inlet facility. If an internal boiler is asked
to operate without sufficient ventilation for fresh air it will lead
to potentially dangerous and damaging consequences.
-Ensure that the flue installation meets all requirements in
terms of the use of bends, tees and restrictions.
-Every flue MUST include draught stabilisation, explosion relief,
condensate collection and the correct protective cowl or
terminal as required.
-Commissioning –The flue draught must be checked under both
full load and part load conditions to ensure that there is the
correct amount of draw in both cases. It is essential that the
correct draw is achieved for both specified flue gas
temperatures and that a draught stabiliser is used to avoid over
drawing of the flue. Correct setting of the draught stabiliser is
critical.
-All flues must be correctly insulated. A poorly insulated flue can
lead to issues during operation of the boiler which may be
damaging.
-Flue termination must be in accordance with building
regulations and pay attention to pressure zones which may be
induced by the building and surrounding topography.
IMPORTANT!
All 90° changes of direction in the flue pipe must be
either removable or capable of inspection. For locating
the boiler against a wall ensure adequate flue support
using approved wall brackets.
THE FLUE PIPE RUN MOUST NOT INCLUDE MORE THAN 2-3 METRES
OF HORIZONTAL PIPE AND MORE THAN THREE 90° ELBOWS
(INCLUDING T’s). IT IS ALSO ADVISABLE NOT TO EXCEED 8 METRES
IN LENGTH WITH THE PIPE DIAMETER OF 100mm.
5.5 Operating Problems Caused by Draught
Defects in the Flue
Of all the weather and geographical conditions which affect the
operation of a flue pipe (rain, fog, snow, exposure to sunlight,
direction of facing), the wind is unquestionably the most decisive. In
fact, along with thermal depression caused by the difference in
temperature inside and outside of the chimney, there is another
type of depression or over-pressure; dynamic pressure caused by
the wind. An up-draught always increases depression provided the
cowl has been installed properly. A down draught always decreases
depression, at times inverting it.
Besides the direction and force of the wind, the position of the flue
and cowl with respect to the roof of the building and surrounding
landscape is important.
The Greenflame air flow regulation system is equipped to deal with
the conditions referenced above by regulating the air flow through
the combustion chamber; an air flow sensor is mounted on the air
in-take duct and measures the volume of air drawn through the
burner pot by the exhaust fan. If down draught conditions are
present and air flow increase, the exhaust fan increases speed to
maintain the required air flow. The opposite reaction occurs in up
draught conditions.
IMPORTANT!
In areas of extreme weather, especially wind, additional
measures may need to be provided for, in consultation
with T R Engineering Ltd.
6Installation and Assembly
6.1 Plumbing Connections
IMPORTANT!
The connection of the boiler to the plumbing system
must be carried out ONLY be specialised personnel who
are capable of carrying out installation properly, in
compliance with current standards in the country of
installation.
If the installation of the boiler will involve interaction with
another, pre-existing system complete wit heating equipment (gas
boiler, methane boiler, fuel oil boiler, etc), it is even more
advisable to call in qualified personnel, who subsequently will be
responsible for conformity of the system with current applicable
law.
T R Engineering Ltd will not be held responsible for damage to
persons or things in the event of failed or incorrect operation if the
aforementioned warnings are not complied with.

Greenflame Slim Wood Pellet Boiler 18kW
13
For connection of the plumbing system to the appliance, the user
should refer to Chapter 6, Installation and Assembly specifically,
paragraph 6.7, Water Connections.
It is recommended that a suitable anti-freeze solution is added to
the heating system to prevent the freezing of water within the boiler
in case of a power outage. The boiler has an anti-freeze function
which activates the pump in the event of the temperature in the
boiler dropping below 5°C.
6.2 Unpacking
The Greenflame 18kW slim pellet boiler will come packaged on a
single pallet. The flue will be packaged separately.
The materials which make up the packaging are 100% recyclable.
Their storage or recycling is therefore the responsibility of the final
user, in compliance with Local Regulations. Do not store the boiler
without its packaging and bubble wrap and recycle in the
appropriate manner.
When unpacking the boiler use the checklist below to ensure that all
the required components to complete the kit have been supplied. In
unlikely event of an omission you must notify the manufacturer
within 48 hours of delivery. The manufacturer reserves the right to
charge for items deemed lost after 48 hours.
Unpacking List
ITEM
LOCATION
RECEIVED
(YES/NO)
Baffle Set –2pcs
Combustion Chamber
Burner Pot
Combustion Chamber
User Manual Pack*
Combustion Chamber
Stainless Flue Support
Brackets x2**
Hopper
Single - Twin Wall Flue
Adaptor**
Hopper
Rain Cap**
Hopper
Flue Straight Lengths
1m x2**
Supplied in separate packaging
*The user manual pack includes a user manual, quick step user
instructions, commissioning report, keys for lockable doors and heat
proof gloves.
**Flue components listed above may vary depending on where the
boiler is being installed. Please check with the installer.
6.3 Preparing the Base
Careful planning at an early stage will greatly help the installation
process and make sure that all required clearances are adhered to
for servicing and that any potential issues with the routing of the
flue can be resolved.
The Greenflame pellet boiler should be positioned on a concrete
plinth at least 50mm high and should project a minimum 300mm
beyond the sides and front of the appliance. The plinth must be
capable of supporting the weight of the appliance when full with
fuel and the plumbing system has been filled with water.
Use the template below for constructing the plinth and for
positioning the flow and return pipe work and electricity supply.
Refer to the service and access clearances around the
appliance on Page 7.
Base
BACK
FRONT
6.4 Electrical Connections
Electrical installations should only be carried out by suitably
qualified and certified electricians. If in doubt on any issue relating
to the electrical connections on the appliance contact T R
Engineering Ltd technical support or your local dealer for guidance
before carrying out any connections.
The Greenflame boiler must be supplied with a 230V 50Hz electrical
supply via a two pole isolation switch rated for Overvoltage
Category III and protected with a 6A circuit breaker. Also, the unit
shall have a 30mA RCD installed into the mains supply. It is
recommended that a power isolation switch is located adjacent to
the boiler isolate the power during servicing and maintenance but
also out of reach of the children and to prevent accidental turning
off to the mains power.
Room thermostats shall be supplied/controlled by safety extra low
voltage.
Black –permanent live
Brown –Time clock control live
Blue –Neutral
Green-Yellow –Earth
Only authorised T R Engineering Ltd personnel may open the
control panel on the boiler. Any interference with the wiring in the
control panel will invalidate the warranty. The boiler and complete
plumbing system must be adequately earthed and bonded in
accordance with Local Building Regulations and Bye-Laws.
300mm
300mm
300mm
40mm
40mm
60mm
60mm
130mm
130mm
145mm
145mm

Greenflame Slim Wood Pellet Boiler 18kW
14
6.5 Boiler Control Panel Schematic
Connection
Functions
Earth
Always connect to earth
1-2
Line 230/110VAC ±10% 50/60Hz
3-4
Auger
5-6
High Voltage 2 (Safety Pressure Switch)
7-8
High Voltage 1 (Safety Thermostat)
9-10
Ignitor
11
Live Phase
12-13
De-Ash Motor 1 & 2
15-16
Pump
18-19-20
Sanitary Valve/Pump
21-22-23
Burner Compressor
24-25
Burner Cleaning Valve
27-28
Belimo Valve
29-30
Auxiliary Output (Warning Light/Loading Pellet Motor)
31-32
Thermocouple (Exhaust Probe)
37-38
Photo resistor Probe
39-40-77
Vacuum Sensor
39: Gnd (Blk)
40: Signal (Yellow)
77: +12V (Red)
41-42
-
43-44
Pellet Probe
45-46
Buffer Tank probe
47-48
Boiler Probe
49-50-51
-
53-54-55
Water Pressure Sensor
53: +5V
54: Signal
55: GND
57-58
Door Switch
59-60
UPS Switch
61-62
Ambient Thermostat
63-64
High Voltage Ambient Thermostat
65-66
Boiler Cleaning
67-68
Exhaust Fan
69-70
Combustion Fan
71-72
Auger 2 Output
74-75
DAC Out (Combustion Fan DC Speed Control)
74: 0÷+10V dac Output
75: GND
75-76-77
Pellet Level Sensor
75: +GND
76: Signal IN
77: +12V
RS232
Connection to PC
RS485
Connection to RS485 device )Lambda module, Control
Panel
M
M
M
M
M
N 2 P 1
N 2
P 1
5
6
7
8
9
10
P 11
N 12
PON 13
POFF 14
N 15
PON 16
POFF 17
N 18
PON 19
POFF 20
N 21
PON 22
POFF 23
COM 24
NO 25
NC 26
N 27
P 28
N29
P 30
OUT 12 OUT 11 OUT 10 OUT 9 OUT 8 OUT 7 OUT 6 OUT 5 INAT 1 INAT 2 OUT 4
INBT3 INBT2 INBT1 S8 S7 S6 S5
62 SIG
61 GND
60 SIG
59 GND
58 SIG
57 GND
56 +5V
55 GND
54 SIG
53 +5V
52 E
51 SIG
50 GND
49 +5V
48 SIG
47 GND
46 SIG
45 GND
44 SIG
43 GND
+31
-32
+33
-34
GND 35
SIG 36
GND 37
SIG 38
GND 39
SIG 40
GND 41
SIG 42
S4 S3 S2 S1
+12V 77
SIG 76
GND 75
+10V 74
73
COM 72
NO 71
RS232
BATTERY
RS485
INAT3 OUT 1 OUT 2 OUT 3
70 N 69 P 68 N 67 P 66 N 65 P 64 63
Boiler
Cleaning
Exhaust
Fan
Combustion
Fan
High Voltage
Ambient Thermostat
Pellet
Sensor
-V
OUT
+V
Ambient TH
UPS Switch
Door
Water Pressure
Sensor
Flow Switch
Boiler Probe
Buffer Probe
Pellet Probe
Flussostat or buffer probe input
depending on parameter P35
Vacuum
Sensor
Yellow Black
Red Pin 77 +12V
Control Panel
Lambda Module
Photoresistor
Exhaust Thermocouple
Auger 2
Pin 71 Live Phase
Pin 3 Neutral
Combustion
Fan Speed
Pin 74 –to the yellow wire
Pin 75 –to the blue wire
LINE
(230VAC/50Hz)
Auger
Safety Pressur Switch
Safety Thermostat TH1
Ignitor
De Ash 1 & 2
Pump
Domestic Water Valve/
Pump
Burner Compressor
Burner Cleaning Valve
Belimo Valve
Loading Pellet Motor/
Warning Light

Greenflame Slim Wood Pellet Boiler 18kW
15
6.6 Lambda Control Panel Schematic
Connection
Functions
Earth
Always connect to the Earth
1-2
Line 230/110VAC ±10% 50/60Hz
23-24-25-26-
27-28
To the Lambda Sensor:
23 RED wire
24 YELLOW Wire
25 WHITE wire
26 GREY wire
27 GREEN wire
28 BLACK Wire
32
Shield Sensor (GND)
RS485
To Control Board
Mains
P N
6 5 4 3 2 1
29 30 31 32
23 24 25 26 27 28
15 16 17 18 19 20 21 22
R
e
d
Y
e
l
l
o
w
W
h
i
t
e
G
r
e
y
G
r
e
e
n
B
l
a
c
k
Lambda Sensor
Shield to the pin 20 or 32 (GND)
RS485
To the Control
board

Greenflame Slim Wood Pellet Boiler 18kW
16
6.7 Auger Set-Up (Optional)
Relay/Contactor
Motor Supply
(MCB Sized to Suit Motor)
Blue
Brown
Blue
Brown
Brown
Blue
Please ensure you check the grub screw is correctly fitted between the auger
screw and motor!
Configure Controller to Operate Motor
-In System Menu > Default Settings > set P50 = 2 to
activate the Loading Motor Function.
-In System Menu > Timers > Set: T24 to 300 seconds.
-Set T23 to 600 for the amount of time to fill hopper.
-Re-set Er18 if showing on the display. Press and hold
power button to re-set if required.
-Run outputs test on auxiliary output to prime auger.
This will take several attempts due to maximum run
time of 90 seconds per test. (Greenflame 25 wait 30
seconds for Belimo valve to open).
-Alternatively connect auger to temporary power supply
and run until pellet appears at auger outlet.

Greenflame Slim Wood Pellet Boiler 18kW
17
6.8 Vacuum System Set-Up (Optional)
6.8.1 Description
6.8.2 Installation
1. Remove 2 pin plug from power lead and connect to the power
connections of the controller. The supply must come from a
13A switched fused spur.
2. Connect vacuum motor cable to feeder connections.
3. Using the sensor bracket and back nuts fit the low sensor
200mm above the boiler hopper sensor and the high sensor
should be approximately ¾ up the hopper (high and low
sensors can be identified from the controller connections).
4. Fit vacuum pipe supplied with the unit t the motor connection
on the back of the unit.
6.8.3 Controller Functions
Main Page
The main page is shown in the LCD display during normal operation
with the following data displayed on it.
Current time
Feeder current (mA)
Icon “(“ (if the night mode is active)
By pressing the MENU button the sub-menu is entered or the
selected option is activated. Press the EXIT button to exit the menu
or cancel the setting.
Manual Operation
The controller is equipped with the manual operation mode for
user’s convenience. When using that function, each is turned on/off
independently from the others.
By pressing the MENU button of the selected unit (feeder, additional
feeder or alarm) is activated and stays on until the MENU button is
pressed again.
Clock
The user may define the current time by setting the clock. Clock
setting is necessary for proper operation.
Day from...
This function is use to define the time when the controller will
switch to the day mode.
Night from...
This function is used to define the time when the controller will
switch to night mode. The controller will start the main hopper
filling process half an hour before switching to the night mode.
Language
This function is used to select the language version of the controller
menu.
6.8.4 System Menu
To access the system menu enter the password 5162.
Low Current Threshold
To set this, monitor manual operation and when the vacuum store is
full, take note of the mA value on the main screen i.e. 7078mA (A).
This needs to be set at 72 x 100 mA so that when the value drops
below this vacuum will turn off after the low current time.
THIS IS ONLY AN EXAMPLE
Alarm
Feeder
Feeder
additional
Top sensor
Bottom
sensor
ON/OFF
Plus (up)
Minus (down)
Exit, settings cancellation
Entrance to menu,
settings to approval
1
2
3
A

Greenflame Slim Wood Pellet Boiler 18kW
18
Low Current Time
This should be set at 4s so when the mA value drops below the
threshold for 4 seconds the vacuum stops.
Pause Time
This should be set at 30s and is the time between cycles of the
vacuum (this is when the vacuum store drops its pellets into the
main hopper).
Protection Time
This should be set at 5 mins so if the vacuum does not turn off after
this time an alarm will show (this is usually due to lack of pellet,
Feeder Protection).
Lower and Upper Sensors
Both these values should be set to NPN.
Protections
To ensure safe and failure free operation, the controller is equipped
with a number of protections. When an alarm occurs the buzzer
goes off and a corresponding message appears on the display.
Feeder Protection
Where the auxiliary hopper is not filled for a long period (e.g. due to
lack of pellet) the controller will turn the feeder off and an alarm will
be activated.
Fuse
The controller is equipped with a 10A fuse to protect the controller.
CAUTION: this must be protected by a 13A fuse from a switched
fused spur.
Maintenance
The pellet loader controller must be checked for any damage to its
wires before and during the heating season. You should also check
the mounting of the controller; clean it of dust and other
contamination.
6.8.5 Technical Data
Specification
Unit
Power Supply
V
230V 50Hz ±10%
Max Power Consumption
W
2000
Ambient Temperature
°C
5-50
Feeder Output
A
7
Additional Feeder Output
Load
A
1
Fuse Insert
A
10
Height
mm
600
Width
mm
400
Depth
mm
400
Weight
kg
25
6.8.6 Assembly
NOTE: Installation should be performed by a fully qualified engineer.
DO NOT install the unit with the power on (make sure that the plug
is disconnected from the mains supply).
NOTE: Incorrect wiring may damage the controller.
The controller cannot be operated in a closed central heating
system. The installation must include safety valves, pressure valves
and a buffer to protect the boiler from water boiling in the central
heating system.
6.9 Water Connections
The diagram below indicates the plumbing connections at the rear
of the boiler. The return connection is factory fitted with a 15/60
standard pump.
Incorrectly sized expansion vessel will invalidate the
warranty. A minimum 18 litre is recommended for the
boiler plus additional expansion for heating and domestic
hot water system.
Ensure that the pre-charge in the vessel is equal to the
initial system fill pressure of between 1-1.5bar.
The boiler can be plumbed into either an open vented system (the
maximum static head of water permissible is 90ft. (27.44m) or a
sealed system. If plumbed into a sealed system an appropriately
sized expansion vessel should be used and installed as per
manufacturer’s instructions. The expansion vessel should be sized
based on the water capacity in the boiler and the water in the entire
heating system.
The pump is on the return pipe work just before the boiler. It is
recommended that a by-pass pipe between the flow and return is
used with a valve to regulate the temperature of the water
returning to the boiler. Also, the system designed should ensure that
there is adequate provision in the system for heat dissipation from
the boiler during the shut-down/extinguishing phase. An automatic
air vent and pressure relief valve must be fitted to the flow pipe
work immediately outside the boiler. The pressure relief valve

Greenflame Slim Wood Pellet Boiler 18kW
19
should be piped to drain to prevent injury to the user or service
technicians if it is activated. All unused connections should be sealed
with blanking plugs. A non-return valve should be fitted to prevent
back siphonage.
Once the plumbing has been completed the system should be fully
flushed to clear any debris which may become lodged in the pipe
work. Any proprietary additives in the system will not have any
adverse effects on the materials used in the manufacture of this
product.
The system should generally be filled from the lowest point on the
system to force any air to the highest point where it can be vented.
The flow pipe on the boiler is fitted with a manual air vent for
venting air from the boiler. The system must then be filled and the
pump can be run continuously for a few hours to completely de-
aerate the system. Hold the ESC button on the controller for 3
seconds to activate the pump. Repeat the procedure to turn it off.
Only when the system has been fully vented can the boiler be
commissioned.
The installation and the design of the central heating system must
be in accordance with BS EN 14336:2004: Heating systems in
Buildings. Installation and Commissioning of Water based Heating
Systems.
BS EN 12828:2003: Heating Systems in Buildings. Design of Water
based Heating Systems.
BS EN 12831:2003: Heating Systems in Buildings. Method for
Calculation of the Design Heat Load.
Always ensure that all connections are making a watertight seal.
7. Control System
FUNCTION
DESCRIPTION
BUTTON
ON/OFF
Function: Ignition, extinguishing by
pushing the button for 3 seconds until
the acoustic signal.
P2
UNBLOCK
Function: Unblock. When the system is
in block by pushing the button for 3
seconds until the acoustic signal.
MODIFY VALUES
INTO MENU
In modify mode change menu and
submenu values.
P4
P6
RUN ON MENU
AND SUBMENU
In menu run or submenu and menu.
ESC
Function: Exit managed by pushing the
button if in a menu or submenu. Out of
menu “Pump Test”.
P1
MENU
Function: Enter in menu or in a
submenu.
P3
MODIFY
Enter in modify mode into a menu.
SET
Save data in a menu.
ENABLE CHRONO
PROGRAMMING
In Chrono menu -> Chrono Program:
enables the selected program.
P5
KEYBOARD LOCK
To lock keyboard keys keep this button
pressed for 3 seconds. To unlock repeat
the same procedure.
FUNCTION
DESCRIPTION
LED
Igniter
LED On: Igniter On
L1
Auger
LED On: Auger is On
L2
Pump
LED On: Pump On
L3
Electrovalve
LED On: Electrovalve On
L4
Auxiliary Output
LED On: Auxiliary Output On
L5
Auger2
LED On: Auger 2 On
L6
De Ash
LED On: De Ash On
L7
Lambda Status
LED On: Lambda Sensor On
L8
UPS
LED On: UPS Switch Contact Open
L9
Pellet Level
LED On: Lack of Pellet
L10
External
Thermostat
LED On: Ambient Thermostat
contact open OR High voltage
ambient thermostat not supplied
with 230VAC
L11
Flowswitch
LED On: Sanitary Water Demand
L12
G
Mar 14:26
P 2
Ignition
Er19
Pellet 1
36°
65°
7.1. System Menu
7.1.1 Auger ON Menu
This menu allows the installer to set the times of the Auger On
inside the Auger Period. The values are referred to the current
combustion recipe. Each value is a functioning power.
The display shows the time, in seconds, for Auger On associated to
the function power. If a value is set to 0 seconds then the auger is
disabled for the corresponding power. Auger regulation can be set
with a step of 0.1 seconds.
Code
Description
C00
Fix Ignition Power
C01
Variable Ignition Power
C02
Stabilisation Power
C03
Power 1
C04
Power 2
C05
Power 3
C06
Power 4
C07
Power 5
C08
Power 6
C09
Power 7
C10
Modulation Power
C43
Power 1 Min Speed Lambda Regulator
C44
Power 2 Min Speed Lambda Regulator
C45
Power 3 Min Speed Lambda Regulator
C46
Power 4 Min Speed Lambda Regulator
C47
Power 5 Min Speed Lambda Regulator
C48
Power 6 Min Speed Lambda Regulator
Day and Time
System State
Flame
Status
Power
Level
Chrono
enable
Recipe
Locked
Buttons
Error
Code
Boiler
Temperature
LEDs
Boiler
Thermostat
Exhaust
Temperature

Greenflame Slim Wood Pellet Boiler 18kW
20
C49
Power 7 Min Speed Lambda Regulator
C50
Modulation Power Min Speed Lambda Regulator
C63
Power 1 Max Speed Lambda Regulator
C64
Power 2 Max Speed Lambda Regulator
C65
Power 3 Max Speed Lambda Regulator
C66
Power 4 Max Speed Lambda Regulator
C67
Power 5 Max Speed Lambda Regulator
C68
Power 6 Max Speed Lambda Regulator
C69
Power 7 Max Speed Lambda Regulator
C70
Modulation Power Max Speed Lambda Regulator
7.1.2 Combustion Fan Menu
This is the menu to set values of the Combustion Fan. The values are
referred to the current combustion recipe. Each value is a
functioning power. The display shows the value of the Fan
associated to the functioning power.
Code
Description
UC00
Fix Ignition Power
UC01
Variable Ignition Power
UC02
Stabilisation Power
UC03
Power 1
UC04
Power 2
UC05
Power 3
UC06
Power 4
UC07
Power 5
UC08
Power 6
UC09
Power 7
UC10
Modulation Power
UC43
Power 1 Min Speed Lambda Regulator
UC44
Power 2 Min Speed Lambda Regulator
UC45
Power 3 Min Speed Lambda Regulator
UC46
Power 4 Min Speed Lambda Regulator
UC47
Power 5 Min Speed Lambda Regulator
UC48
Power 6 Min Speed Lambda Regulator
UC49
Power 7 Min Speed Lambda Regulator
UC50
Modulation Power Min Speed Lambda Regulator
UC63
Power 1 Max Speed Lambda Regulator
UC64
Power 2 Max Speed Lambda Regulator
UC65
Power 3 Max Speed Lambda Regulator
UC66
Power 4 Max Speed Lambda Regulator
UC67
Power 5 Max Speed Lambda Regulator
UC68
Power 6 Max Speed Lambda Regulator
UC69
Power 7 Max Speed Lambda Regulator
UC70
Modulation Power Max Speed Lambda Regulator
7.1.3 Exhaust Fan Menu
This is the menu to set values of the Exhaust fan. The values are
referred to the current combustion recipe. Each value is a
functioning power.
Code
Description
UA00
Fix Ignition Power
UA01
Variable Ignition Power
UA02
Stabilisation Power
UA03
Power 1
UA04
Power 2
UA05
Power 3
UA06
Power 4
UA07
Power 5
UA08
Power 6
UA09
Power 7
UA10
Modulation Power
UA40
Fix Ignition Power Min Speed Vacuum Regulator
UA41
Variable Ignition Power Min Speed Vacuum Regulator
UA42
Stabilisation Power Min Speed Vacuum Regulator
UA43
Power 1 Min Speed Vacuum Regulator
UA44
Power 2 Min Speed Vacuum Regulator
UA45
Power 3 Min Speed Vacuum Regulator
UA46
Power 4 Min Speed Vacuum Regulator
UA47
Power 5 Min Speed Vacuum Regulator
UA48
Power 6 Min Speed Vacuum Regulator
UA49
Power 7 Min Speed Vacuum Regulator
UA50
Modulation Power Min Speed Vacuum Regulator
UA60
Fix Ignition Power Max Speed Vacuum Regulator
UA61
Variable Ignition Power Max Speed Vacuum Regulator
UA62
Stabilisation Power Max Speed Vacuum Regulator
UA63
Power 1 Max Speed Vacuum Regulator
UA64
Power 2 Max Speed Vacuum Regulator
UA65
Power 3 Max Speed Vacuum Regulator
UA66
Power 4 Max Speed Vacuum Regulator
UA67
Power 5 Max Speed Vacuum Regulator
UA68
Power 6 Max Speed Vacuum Regulator
UA69
Power 7 Max Speed Vacuum Regulator
UA70
Modulation Power Max Speed Vacuum Regulator
7.1.4 Thermostats Menu
This is the menu to set the temperatures of Thermostats.
Code
Description
Min
(°C)
Max
(°C)
TH01
Boiler off
5
901
TH02
Igniter off on Variable Ignition
5
901
TH03
Pre-Extinguishing thermostat for low flue gas
temperature (only if P27 = 0)
5
901
TH04
Thermostat to use Variable Ignition power
5
901
TH06
Thermostat to bypass Variable Ignition
5
901
TH07
Thermostat on Flue gas to go in Modulation
5
901
TH08
Thermostat on Flue gas to go in Safety
5
901
TH09
Thermostat on Flue gas to go bypass Ignition
(go in Normal)
5
901
TH10
Thermostat on Flue gas to go in Standby
5
901
TH50
Thermostat on Flue gas to switch On Lambda
Regulator
5
901
TH51
Thermostat on Flue gas Min Lambda Regulator
5
901
TH52
Thermostat on Flue gas Max Lambda
Regulator
5
901
TH18
Ice Thermostat
5
10
TH19
Heating pump thermostat
20
80
IH19
Activation Pump thermostat histeresys
1
20
TH20
Sanitary Min thermostat
30
85
TH21
Sanitary Max thermostat
30
95
IH24
Water Boiler thermostat histeresys
1
20
TH25
Boiler Safety thermostat
80
110
TH26
Boiler Thermostat minimum range
50
70
TH27
Boiler Thermostat maximum range
75
95
TH29
Buffer Thermostat
50
95
IH29
Buffer Thermostat histeresys
1
10
TH30
Differential Thermostat
1
30
IH30
Differential Thermostat histeresys
1
5
TH40
Water Alarm Thermostat
90
110
L00
Photo probe Light OFF
0
100
L01
Photo probe Light ON
0
100